/**
 * @file
 * Network Interface Sequential API module
 *
 */

/*
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
 * OF SUCH DAMAGE.
 *
 * This file is part of the lwIP TCP/IP stack.
 *
 */

#include "lwip/opt.h"

#if LWIP_NETIF_API /* don't build if not configured for use in lwipopts.h */

#include "lwip/netifapi.h"
#include "lwip/tcpip.h"

/**
 * Call netif_add() inside the tcpip_thread context.
 */
void do_netifapi_netif_add(struct netifapi_msg_msg *msg)
{
	if (!netif_add(msg->netif,
	               msg->msg.add.ipaddr,
	               msg->msg.add.netmask,
	               msg->msg.add.gw,
	               msg->msg.add.state,
	               msg->msg.add.init,
	               msg->msg.add.input)) {
		msg->err = ERR_IF;
	} else {
		msg->err = ERR_OK;
	}
	TCPIP_NETIFAPI_ACK(msg);
}

/**
 * Call netif_set_addr() inside the tcpip_thread context.
 */
void do_netifapi_netif_set_addr(struct netifapi_msg_msg *msg)
{
	netif_set_addr(msg->netif, msg->msg.add.ipaddr, msg->msg.add.netmask, msg->msg.add.gw);
	msg->err = ERR_OK;
	TCPIP_NETIFAPI_ACK(msg);
}

/**
 * Call the "errtfunc" (or the "voidfunc" if "errtfunc" is NULL) inside the
 * tcpip_thread context.
 */
void do_netifapi_netif_common(struct netifapi_msg_msg *msg)
{
	if (msg->msg.common.errtfunc != NULL) {
		msg->err = msg->msg.common.errtfunc(msg->netif);
	} else {
		msg->err = ERR_OK;
		msg->msg.common.voidfunc(msg->netif);
	}
	TCPIP_NETIFAPI_ACK(msg);
}

/**
 * Call netif_add() in a thread-safe way by running that function inside the
 * tcpip_thread context.
 *
 * @note for params @see netif_add()
 */
err_t netifapi_netif_add(struct netif *netif, ip_addr_t *ipaddr, ip_addr_t *netmask, ip_addr_t *gw, void *state,
                         netif_init_fn init, netif_input_fn input)
{
	struct netifapi_msg msg;
	msg.function            = do_netifapi_netif_add;
	msg.msg.netif           = netif;
	msg.msg.msg.add.ipaddr  = ipaddr;
	msg.msg.msg.add.netmask = netmask;
	msg.msg.msg.add.gw      = gw;
	msg.msg.msg.add.state   = state;
	msg.msg.msg.add.init    = init;
	msg.msg.msg.add.input   = input;
	TCPIP_NETIFAPI(&msg);
	return msg.msg.err;
}

/**
 * Call netif_set_addr() in a thread-safe way by running that function inside the
 * tcpip_thread context.
 *
 * @note for params @see netif_set_addr()
 */
err_t netifapi_netif_set_addr(struct netif *netif, ip_addr_t *ipaddr, ip_addr_t *netmask, ip_addr_t *gw)
{
	struct netifapi_msg msg;
	msg.function            = do_netifapi_netif_set_addr;
	msg.msg.netif           = netif;
	msg.msg.msg.add.ipaddr  = ipaddr;
	msg.msg.msg.add.netmask = netmask;
	msg.msg.msg.add.gw      = gw;
	TCPIP_NETIFAPI(&msg);
	return msg.msg.err;
}

/**
 * call the "errtfunc" (or the "voidfunc" if "errtfunc" is NULL) in a thread-safe
 * way by running that function inside the tcpip_thread context.
 *
 * @note use only for functions where there is only "netif" parameter.
 */
err_t netifapi_netif_common(struct netif *netif, netifapi_void_fn voidfunc, netifapi_errt_fn errtfunc)
{
	struct netifapi_msg msg;
	msg.function                = do_netifapi_netif_common;
	msg.msg.netif               = netif;
	msg.msg.msg.common.voidfunc = voidfunc;
	msg.msg.msg.common.errtfunc = errtfunc;
	TCPIP_NETIFAPI(&msg);
	return msg.msg.err;
}

#endif /* LWIP_NETIF_API */
